New to Telerik UI for ASP.NET AJAX? Download free 30-day trial

Virtualization

ID	Contact Title	Contact Name	Country	Rating


1	Accounting Manager	Matti Karttunen	Brazil	1 2 3 4 5
2	Sales Consultant	Matti Karttunen	Germany	1 2 3 4 5
3	Accountant	Paul Henriot	Italy	1 2 3 4 5
4	Marketing Assistant	Hanna Moos	Brazil	1 2 3 4 5
5	Marketing Assistant	Jaime Yorres	Austria	1 2 3 4 5
6	Sales Representative	Matti Karttunen	France	1 2 3 4 5
7	Accountant	Jaime Yorres	England	1 2 3 4 5
8	Sales Representative	Jaime Yorres	Italy	1 2 3 4 5
9	Sales Consultant	Hanna Moos	Bulgaria	1 2 3 4 5
10	Sales Consultant	Pascale Cartrain	France	1 2 3 4 5
11	Accountant	Matti Karttunen	France	1 2 3 4 5
12	Sales Consultant	Elizabeth Lincoln	USA	1 2 3 4 5
13	Accountant	Howard Snyder	Italy	1 2 3 4 5
14	Marketing Assistant	Georg Pipps	USA	1 2 3 4 5
15	Sales Manager	Pascale Cartrain	Argentina	1 2 3 4 5
16	Sales Manager	Patricio Simpson	Italy	1 2 3 4 5
17	Sales Representative	Matti Karttunen	Spain	1 2 3 4 5
18	Sales Consultant	Howard Snyder	Italy	1 2 3 4 5
19	Sales Manager	Paul Henriot	Austria	1 2 3 4 5
20	Owner	Patricio Simpson	Brazil	1 2 3 4 5
21	Sales Consultant	Antonio Moreno	Bulgaria	1 2 3 4 5
22	Sales Consultant	Georg Pipps	Germany	1 2 3 4 5
23	Sales Manager	Hanna Moos	France	1 2 3 4 5
24	Sales Consultant	Hanna Moos	Germany	1 2 3 4 5
25	Owner	Antonio Moreno	Germany	1 2 3 4 5
26	Sales Associate	Hanna Moos	Spain	1 2 3 4 5
27	Sales Agent	Antonio Moreno	Argentina	1 2 3 4 5
28	Marketing Manager	Elizabeth Lincoln	USA	1 2 3 4 5
29	Sales Manager	Georg Pipps	Spain	1 2 3 4 5
30	Sales Associate	Jaime Yorres	Italy	1 2 3 4 5
31	Marketing Assistant	Paul Henriot	Germany	1 2 3 4 5
32	Marketing Assistant	Pascale Cartrain	Argentina	1 2 3 4 5
33	Sales Representative	Jaime Yorres	France	1 2 3 4 5
34	Sales Representative	Paul Henriot	France	1 2 3 4 5
35	Marketing Manager	Patricio Simpson	France	1 2 3 4 5
36	Sales Agent	Hanna Moos	Austria	1 2 3 4 5
37	Sales Agent	Antonio Moreno	Spain	1 2 3 4 5
38	Owner	Pascale Cartrain	Germany	1 2 3 4 5
39	Marketing Manager	Elizabeth Lincoln	England	1 2 3 4 5
40	Owner	Elizabeth Lincoln	Germany	1 2 3 4 5
41	Marketing Manager	Paul Henriot	Italy	1 2 3 4 5
42	Marketing Assistant	Patricio Simpson	France	1 2 3 4 5
43	Accountant	Paul Henriot	Italy	1 2 3 4 5
44	Owner	Paul Henriot	USA	1 2 3 4 5
45	Marketing Assistant	Antonio Moreno	France	1 2 3 4 5
46	Sales Associate	Antonio Moreno	Italy	1 2 3 4 5
47	Accounting Manager	Hanna Moos	Austria	1 2 3 4 5
48	Accountant	Paul Henriot	Argentina	1 2 3 4 5
49	Marketing Manager	Elizabeth Lincoln	USA	1 2 3 4 5
50	Accountant	Paul Henriot	USA	1 2 3 4 5
51	Sales Representative	Matti Karttunen	Germany	1 2 3 4 5
52	Owner	Hanna Moos	Bulgaria	1 2 3 4 5
53	Owner	Pascale Cartrain	Austria	1 2 3 4 5
54	Sales Agent	Jaime Yorres	England	1 2 3 4 5
55	Sales Associate	Paul Henriot	Italy	1 2 3 4 5
56	Sales Manager	Pascale Cartrain	Spain	1 2 3 4 5
57	Owner	Howard Snyder	France	1 2 3 4 5
58	Accounting Manager	Jaime Yorres	France	1 2 3 4 5
59	Accounting Manager	Jaime Yorres	Austria	1 2 3 4 5
60	Marketing Assistant	Elizabeth Lincoln	Argentina	1 2 3 4 5
61	Accounting Manager	Antonio Moreno	Brazil	1 2 3 4 5
62	Sales Associate	Hanna Moos	France	1 2 3 4 5
63	Sales Agent	Hanna Moos	Germany	1 2 3 4 5
64	Owner	Paul Henriot	Germany	1 2 3 4 5
65	Sales Agent	Jaime Yorres	Argentina	1 2 3 4 5
66	Sales Representative	Paul Henriot	USA	1 2 3 4 5
67	Sales Consultant	Hanna Moos	Germany	1 2 3 4 5
68	Sales Representative	Jaime Yorres	Brazil	1 2 3 4 5
69	Sales Manager	Elizabeth Lincoln	Argentina	1 2 3 4 5
70	Sales Consultant	Howard Snyder	England	1 2 3 4 5
71	Sales Agent	Hanna Moos	USA	1 2 3 4 5
72	Accounting Manager	Patricio Simpson	Italy	1 2 3 4 5
73	Accountant	Paul Henriot	Brazil	1 2 3 4 5
74	Owner	Patricio Simpson	Bulgaria	1 2 3 4 5
75	Marketing Manager	Georg Pipps	France	1 2 3 4 5
76	Marketing Manager	Georg Pipps	France	1 2 3 4 5
77	Marketing Manager	Hanna Moos	Spain	1 2 3 4 5
78	Marketing Manager	Pascale Cartrain	Italy	1 2 3 4 5
79	Sales Manager	Jaime Yorres	France	1 2 3 4 5
80	Sales Representative	Antonio Moreno	Austria	1 2 3 4 5
81	Sales Agent	Patricio Simpson	France	1 2 3 4 5
82	Marketing Assistant	Antonio Moreno	Italy	1 2 3 4 5
83	Marketing Manager	Howard Snyder	Italy	1 2 3 4 5
84	Accountant	Elizabeth Lincoln	Bulgaria	1 2 3 4 5
85	Sales Consultant	Elizabeth Lincoln	England	1 2 3 4 5
86	Sales Consultant	Paul Henriot	Austria	1 2 3 4 5
87	Sales Associate	Hanna Moos	Germany	1 2 3 4 5
88	Sales Agent	Elizabeth Lincoln	Argentina	1 2 3 4 5
89	Marketing Assistant	Paul Henriot	Brazil	1 2 3 4 5
90	Owner	Matti Karttunen	Spain	1 2 3 4 5
91	Sales Representative	Patricio Simpson	USA	1 2 3 4 5
92	Owner	Georg Pipps	Brazil	1 2 3 4 5
93	Sales Associate	Howard Snyder	Germany	1 2 3 4 5
94	Sales Associate	Pascale Cartrain	Spain	1 2 3 4 5
95	Marketing Manager	Elizabeth Lincoln	Bulgaria	1 2 3 4 5
96	Sales Consultant	Patricio Simpson	USA	1 2 3 4 5
97	Sales Associate	Hanna Moos	Spain	1 2 3 4 5
98	Sales Representative	Paul Henriot	Argentina	1 2 3 4 5
99	Sales Associate	Patricio Simpson	Austria	1 2 3 4 5
100	Accountant	Hanna Moos	Germany	1 2 3 4 5


...161 162 163 164 165 166 167 168 169 170 ... Item 168001 to 169000 of 300000 Page: of 300 GoPage size:

Sort Ascending
Sort Descending
Clear Sorting
Columns
- ID
- Contact Title
- Contact Name
- Country
- Rating

About this demo
C#
VB
Download demo code files
Isolate this demo as a stand-alone application

RadGrid's virtualization feature allows you to handle hundreds of thousands of rows without negatively impacting the user experience. The control achieves this thanks to its ItemsPerView property allowing you to control the number of items loaded at a time. Users can now scroll, as well as show, hide, resize and reorder columns without any waiting time.

This demo shows how quickly Telerik's ASP.NET DataGrid can handle user interactions with 300,000 items. You can configure the component to allow scrolling through the entire data set or only through the current page by using EnableCurrentPageScrollOnly property,.

<%@ Page Language="c#" CodeFile="DefaultCS.aspx.cs" Inherits="Telerik.GridExamplesCSharp.Performance.Virtualization.DefaultCS" %>

<%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>
<%@ Register TagPrefix="qsf" Namespace="Telerik.QuickStart" %>
<!DOCTYPE html>
<html xmlns='http://www.w3.org/1999/xhtml'>
<head runat="server">
    <title>Telerik ASP.NET Example</title>
    <link href="styles.css" rel="stylesheet" />
</head>
<body>
    <form id="form1" runat="server">
    <telerik:RadScriptManager runat="server" ID="RadScriptManager1" />
    <telerik:RadSkinManager ID="RadSkinManager1" runat="server" ShowChooser="true" />
    <telerik:RadAjaxLoadingPanel runat="server" ID="RadAjaxLoadingPanel1"></telerik:RadAjaxLoadingPanel>
    <telerik:RadAjaxPanel runat="server" ID="RadAjaxPanel" LoadingPanelID="RadAjaxLoadingPanel1" CssClass="demo-container">
        <telerik:RadGrid RenderMode="Lightweight" ID="RadGrid1" runat="server"  AutoGenerateColumns="false"
            AllowSorting="true" GroupingEnabled="false"
            EnableHeaderContextMenu="true" AllowPaging="true" PageSize="1000" OnNeedDataSource="RadGrid1_NeedDataSource">
            <MasterTableView TableLayout="Fixed">
                <Columns>
                    <telerik:GridBoundColumn UniqueName="ID" HeaderText="ID" HeaderStyle-Width="50px" DataField="ID"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactTitle" HeaderText="Contact Title" HeaderStyle-Width="150px" DataField="ContactTitle"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactName" HeaderText="Contact Name" HeaderStyle-Width="150" DataField="ContactName"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="Country" HeaderText="Country" HeaderStyle-Width="100px" DataField="Country"></telerik:GridBoundColumn>
                    <telerik:GridRatingColumn UniqueName="Rating" HeaderText="Rating" HeaderStyle-Width="100px" DataField="Rating"></telerik:GridRatingColumn>
                </Columns>
            </MasterTableView>
            <ClientSettings ReorderColumnsOnClient="true" AllowColumnsReorder="true" ColumnsReorderMethod="Reorder">
                <Virtualization EnableVirtualization="true" InitiallyCachedItemsCount="2000"
                    LoadingPanelID="RadAjaxLoadingPanel1" ItemsPerView="100"/>
                <Scrolling AllowScroll="true" UseStaticHeaders="true" ScrollHeight="500px" />
                <Resizing AllowColumnResize="true" />
            </ClientSettings>
            <PagerStyle Mode="NextPrevNumericAndAdvanced"></PagerStyle>
        </telerik:RadGrid>
    </telerik:RadAjaxPanel>
    </form>
</body>
</html>

Support & Learning Resources

Find Assistance

Submit a support ticket if you have an active license or trial
Post in the forum if you don't have access to support

Virtualization

Related Resources

Support & Learning Resources

Find Assistance